C Language Study, languagestudy

C Language Study, languagestudy

Stupid

It's silly to test this preprocessing command.

The procedure is as follows:

# Include <stdio. h> # define TESTLINE4 # if _ LINE __! = TESTLINE # error It's not testline! # Endifint main (void) {return 0 ;}

The error message provided by the compiler:

D: \ test. c (6): fatal error C1189: # error: It's not testline!
Error executing cl.exe.

# Include <stdio. h> # define TESTLINE5 # if _ LINE __! = TESTLINE # error It's not testline! # Endifint main (void) {return 0 ;}

Test.exe-0 error (s), 0 warning (s)

Compiled.

This magical preprocessing command is messy ~